Extractor



W. BARTHOLOMEW.

EXTRACTOR.

APPLICATION FILED SEPT 18, I918.

ILAQUQZB Patented Dec. N, 1921.

i w r r, i t 1] Ewe/2T5?- Wham fiafi/zolomeu) WILL BAETHOLOMEW, OF CHICAGO,

rnnmors, sienna ro 'rr naunnar MACHINERY COMPANY, LTD, OF CHICAGO, ILLINOIS, A. CORPORATION OF NEW EXTRACTQR.

Specification of Letters Patent.

Patented Dec, 2d, 1921,

Application filed September 18, 1918. Serial No. 254,5tt.

useful Improvements in Extractors, of

which the following is a specification,

This invention relates to a method of and means for removing oils, fats and greases from cloths and the like and drying such cloths.

The object of the invention is to facilitate the cleaning and drying of oily or greasy cloths, and the recovery of the extracted matter from said cloths.

Another object is to provide a simple and eflicient mechanism adapted to meet the requirements for the intended use,

These and other objects are accomplished by means of the arrangement disclosed by the drawings, in whic Figure 1 is a fragmentary vertical sectional yiew of a centrifugal extractor embodying my invention, and

Fig, 2 is a plan view of the same mechanism,

Referring to the figures of the drawing, it will be noted that I have shown a centrifugal extractor including a main housing or casing 10 supported by an integrally formed curb 11, in which is mounted the usual hearing (not shown) for the reception of a shaft 12, to the upper end of which is secured a perforated container or basket 13, which is driven at a high rate of speed by any suitable means.

It has been found that greasy or oily cloths can be cleaned, and the extracted oil and grease recovered by revolving the hashot 13 containing the oily and greasy cloths at a high rate of speed, and at the same time inject steam from the outside of the basket by means of a perforated steam 'coil interposed between the basket and the casing, the extracted material, together with condensed steam, being drawn off through an opening 141 511 the bottom of the casing 10. While such an arrangement works fairly well, it has been found that the steam in the coil so located is condensed an excessive amount as a result of air currents set up around said coil by the intense fanning action of the rapidly revolving basket.-

As a result of serious consideration, it has been found that the cleaning and extracting action uponoily and greasy cloths'may be greatly increased by directing a high'pressure flow of steam directly into thetop of the basket,'thereby forcing jets of steam outwardly through the cloths and through the perforat ons 1n the basket 13. To this end I have provided a steam pipe 15, which re ceives its steam through a pipe 16, to which t s pivotally connected by a cuniversal pipe oint section 17. lPhe live end of the steam pipe 15 extends through and is secured to a cover 18 for the casing 10, said cover being pivotally connected at 19 to the casing. As a result of this arrangement, the cover 18 may be opened and closed as desired and the steam pipe 15 which is permanently connected thereto will properly accommodate itself by virtue of the universal section 17.

To prevent any clogging and sluggish action in the flow of the extracted oil and grease, I have mounted a coil of pipe 20 in the casing below the basket 13 and adjacentthe exit openin 14-, which coilreceives live steam from a plpe 21, whereby-the extracted material will always remain finid and will drain with great cclerity.

In operation, the oily or greasy cloths are passed into the open ended basket 13', when the cover 18 is in open position, after which the cover is closed, the bask t set in operation and the steam turned on, whereby steam under high pressure is shot out from the pipe 15 for extractin the oil and grease from the cloths in com ined action with centrifugal force, causing the cloths to be thoroughly cleaned. Not only are the cloths or fabrics cleaned in this manner, but they are dried an increased amount as the result of the location of the steam coil 20- 'below the basket and between the latter and the case ing. The heat radiated from the imperfo' rate coil of steam pipe has a very marked efiect upon the cloths being treated, in that the latter are caused to expand vertically, thereby loosening! the mass, especially in that direction, and making possible a greater freedom of movement of moisture and other fluids through the meshes of the cloths.

It is my intention to cover all modifications of the invention falling within the spirit and scope of the following claims.

What I claim is:

1. In a centrifugal extractor, the comblnation of a revolubly mounted perforated container for the reception of cloths from whole ice are

oils, fats or greases are to be extracted, a

casing surrounding said container and h'aving an opening for the discharge of oils, fats and greases extracted from said cloths, means for supplyingsteam from outside the casing to said container for cleaning the cloths, and a horizontally arranged steam coil located in said casing directly under the container for heating purposes and having a connection extending through said casing opening to keep the extracted material in a fluid state to facilitate its discharge through said opening.

2. In a centrifugal extractor, the combination of a revolubly mounted perforated container for cloths from which oils, fats or greases are to be extracted, means for directing steam outwardly from the interior of the container for extracting same from the cloths, a casing surrounding the container and having adischarge opening, and heating means extending through said opening for maintaining the extracted material in a fluid state to facilitate its discharge through said opening.

Signed at Chicago, Illinois, this l3thrday of September, 1918.

WILLIAM BARTHOLOMEW. 

